Contact: Paul Preuss
DOE/Lawrence Berkeley National Laboratory
Caption: A patch of graphene at the surface of a platinum substrate exhibits four triangular nanobubbles at its edges and one in the interior. Scanning tunneling spectroscopy taken at intervals across one nanobubble (inset) shows local electron densities clustering in peaks at discrete Landau-level energies. Pseudo-magnetic fields are strongest at regions of greatest curvature.
Credit: courtesy of Michael Crommie, Berkeley Lab
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